Fuels & Burning
A substance that releases energy when it burns.
What is a fuel?
The scientist who studied the mass of substances before and after chemical reactions.
Who is Antoine Lavoisier?
Unlike gasoline and ethanol, hydrogen fuel does not contain this element.
What is carbon?
The substances present before a chemical reaction begins.
What are reactants?
Ethanol is a fuel made from this crop.
What is corn?
People use energy from burning fuels to run vehicles, heat homes, and do this activity with food.
What is cooking?
This is a measure of how much matter makes up an object.
What is mass?
Hydrogen must mix with this substance in order to burn.
What is oxygen?
The new substances formed during a chemical reaction.
What are products?
One ethanol group contains two atoms of this element.
What is carbon?
Burning a substance actually causes this type of change.
What is a chemical reaction?
Lavoisier found that the mass of the reactants was ______ the mass of the products.
What is the same as/equal to?
Burning reactions such as hydrogen burning occur only at this type of temperature.
What is a high temperature?
During a chemical reaction, atoms do this to form new groups.
What is rearrange?
Ethanol contains 2 carbon atoms, 6 hydrogen atoms, and this many oxygen atoms.
What is 1 oxygen atom?
During a chemical reaction, these starting substances change into new substances.
What are reactants?
This law states that matter cannot be created or destroyed during a chemical reaction.
What is the Law of Conservation of Matter?
This is the only product formed when hydrogen burns.
What is water in the gas phase?
True or False: New atoms are created when a fuel burns.
What is False?
When ethanol burns, it must mix with this substance.
What is oxygen?
Gasoline seems to disappear when it burns because many of the substances produced are this type of matter.
What are invisible gases?
These two products form when ethanol burns.
What are carbon dioxide and water in the gas phase?
Give one reason hydrogen is not used in more vehicles.
What is:
In the ethanol diagram, there are 2 carbon atoms before the reaction. How many carbon atoms are present after the reaction
What is 2 carbon atoms?
These two products form when ethanol burns.
What are carbon dioxide and water in the gas phase?